The distance from the post office to the supermarket is 0.5 km. what is the distance in meters?

The answer is 500 meters.  To find the answer, multiply the km number by 1000. Hope this helps!!!

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus